Windows 8 offline login

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Your machine is offline please try to sign in with the last password used on this PC

I am away for the holidays and went to log in on Windows 8. Because I am offline and it cannot access Windows Live it is asking for the last password used. I do not have one as this was a clean install and I have tried every password I've ever used but to no avail. I am stuck I cannot get into Window. I'm sure when I get home and it picks up my network and autoconnects I'll be fine but I need my computer now. I am at inlaws and computer is only escape. Had to borrow one to enetr this request. Also how do you enter safemode from Windows 8? Thank you!

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